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NAME

       lofig - mbk logical figure

DESCRIPTION

       The  lofig  is  used to describe a hierarchical level of the logical view of a figure. The
       logical view is also called the netlist, for list  of  nets,  because  it  represents  the
       interconnections between elements of a cell.

       The   declarations   needed   to   work   on  lofig  are  available  in  the  header  file
       "/labo/include/mlo.h".

       The following C structure supports the description of the netlist representation :
              typedef struct lofig {
                 struct lofig     ∗NEXT;
                 struct chain     ∗MODELCHAIN;
                 struct locon     ∗LOCON;
                 struct losig     ∗LOSIG;
                 struct ptype     ∗BKSIG;
                 struct loins     ∗LOINS;
                 struct lotrs     ∗LOTRS;
                 struct lotrs     ∗LOCAP;
                 struct lotrs     ∗LORES;
                 struct lotrs     ∗LOSELF;
                 char             ∗NAME;
                 char             MODE;
                 struct ptype     ∗USER;
              } lofig_list;

       NEXT                Pointer to the next lofig loaded in ram.

       NAME                Name of the figure. It identifies a figure (or model), so it should be
                           unique  in  order to warranty consistency of cells libraries. In order
                           to ensure this consistency, the NAME field must  be  filled  with  the
                           disk  file  name  while  parsing,  and  must  be used as file name for
                           driving.

       LOINS               Pointer to the head of the list of instances being used for the  model
                           description. See loins(3) for details.

       LOCON               Pointer  to  the  head  of  the  list of connectors (terminals) of the
                           model.  See locon(3) for details.

       LOSIG               Pointer to the head of the list of signal of the model.  See  losig(3)
                           for details.

       BKSIG               Pointer  to  a hash table that contains arrays of LOSIG. It is only an
                           other way to represent the same elements that in the list, but  allows
                           a  faster  access.  The  Mbk Logical Functions warranty the consitency
                           between the two representations.

       LOTRS               Pointer to the list of transistors belonging to the figure. It  is  to
                           be noticed that transistors are not instances of a particular type.

       LOCAP               Pointer to the list of capacitors belonging to the figure.

       LORES               Pointer to the list of resistors belonging to the figure.

       LOSELF              Pointer to the list of inductors belonging to the figure.

       MODE                Caracter indicating the status of the figure in memory. This field can
                           take two values :

                           ´A´       all the cell is loaded in ram.

                           ´P´       only information concerning the model interface is  present,
                                     that  means  connectors,  and  signals  linked  to  external
                                     connectors.  All other lists are empty.

       MODELCHAIN          Pointer to a chain list, see chain(3) for details, of names. These are
                           the  names  of  the  models that are at least instanciated once in the
                           figure.

       USER                Pointer to a ptype list, see ptype(3) for details, that is  a  general
                           purpose pointer used to share informations on the model.

SEE ALSO

       mbk(1),  addlofig(3),  getlofig(3),  dellofig(3),  loadlofig(3),  savelofig(3),  loins(3),
       lotrs(3), locap(3), lores(3), loself(3), locon(3), losig(3), ptype(3), chain(3), phfig(3).